A Slice-Based Change Impact Analysis for Regression Test Case Prioritization of Object-Oriented Programs

Table 6

Overview of mutation operators.

Operator	Description
Traditional operators
ABS	Absolute value insertion
AOR	Arithmetic operator replacement
LCR	Logical connector replacement
ROR	Relational operator replacement
UOI	Unary operator insertion
Java Interclass operators
IHD	Hiding variable deletion
IHI	Hiding variable insertion
IOD	Overriding method deletion
IOP	Overridden method calling position change
IOR	Overridden method rename
ISK	Super keyword deletion
IPC	Explicit call of a parent’s constructor deletion
PNC	New method call with child class type
PMD	Instance variable declaration with parent class type
PPD	Parameter variable declaration with child class type
PRV	Reference assignment with other compatible types
OMR	Overloading method contents change
OMD	Overloading method deletion
OAO	Argument order change
OAN	Argument number change
JTD	This keyword deletion
JSC	Static modifier change
JID	Member variable initialization deletion
JDC	Java-supported default constructor creation
EOA	Reference and content assignment replacement
EOC	Reference and content comparison replacement
EAM	Accessor method change
EMM	Modifier method change